Nyob hauv paj paj tawg paj puas yog?

Cov txheej txheem:

Nyob hauv paj paj tawg paj puas yog?
Nyob hauv paj paj tawg paj puas yog?

Video: Nyob hauv paj paj tawg paj puas yog?

Video: Nyob hauv paj paj tawg paj puas yog?
Video: Koj Yog Lub Paj Tawg Tshiab - Tsua Muas 2024, Hlis ntuj nqeg
Anonim

Ray florets yog sterile, thiab disc florets muaj ob tus txiv neej thiab poj niam cov qauv, suav nrog ib lub zes qe menyuam uas tsim los rau hauv cov noob paj noob hlis. Ib lub paj taub hau yuav muaj txog li ob txhiab disc florets, txhua tus muaj peev xwm tsim tau rau hauv ib lub noob.

YPuas ray florets ntawm sunflower Zygomorphic?

(b) Ray florets - Cov paj uas nyob ntawm qhov chaw. Lawv yog zygomorphic thiab asexual, yog li tsis muaj menyuam.

Puas ray florets ntawm sunflower Epigynous?

Ray florets ntawm sunflower muaj epigynous pajthiab qis dua zes qe menyuam.

Dab tsi yog txoj haujlwm ntawm ray florets hauv paj noob hlis?

Ray florets muaj lub luag haujlwm tseem ceeb hauv paj noob hlis kev yug me nyuam tshwj xeeb hauv kev tsim cov noob hybrid uas nyob ntawm honeybees rau pollination. Kev hloov kho morphological ntawm lub paj tuaj yeem ua rau tsis tshua muaj kev ntxim nyiam rau honeybees thiab cuam tshuam rau kev coj tus cwj pwm ntawm cov kab.

Puas muaj ray florets puas muaj paj tawg paj?

Txhua lub taub hau feem ntau muaj 13 txog 30 ray pajuas yog 2.5 txog 5 centimeters (1 mus rau 2 ntiv tes) ntev, thiab 150 mus rau ntau tshaj ib txhiab-disc paj. Ob lub rays thiab disc paj yog daj (reddish rays nyob rau hauv ib co cultivated forms).

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